Unable to access the yahoo.com website as Seamonkey is not recognized with the proper extensions. It does have an extension for Firefox but not Seamonkey.I seem to not be able to add the Firefox extension to Seamonkey...Any solution??

You don't need an extension to access Yahoo using SeaMonkey. At a guess, Yahoo is telling you that your browser is too old and obsolete. That's poor programming on their part. See this article to spoof your User Agent String so Yahoo will think you are visiting using Firefox. viewtopic.php?f=40&t=3028985

I have the latest version updated on 10, 08, 2017 from the previous May 2016 version......using dates because I cant find anywhere the version number even the properties section does not show what version it is!!!

I have the latest version updated on 10, 08, 2017 from the previous May 2016 version......using dates because I cant find anywhere the version number even the properties section does not show what version it is!!!

It appears to be something with security settings, probably in the OS? On my desktop, both SeaMonkey and IE get errors. IE gives a message about turning on TLS 1.0, 1.1, or 1.2, while SeaMonkey give an error about no common encryption algorithm(s). However, on my laptop, both Firefox and IE work fine.